Question

The ratio of the number of Mary's necklaces to the number of Helen's necklaces is 25:9.Mary's has 100 necklaces. How many necklaces does Helen's have.

Answer 1

Answer: 36

Explanation:

Given

The ratio of Mary's to Helen's necklaces is 25:9

Mary has 100 necklaces

Suppose Helen has x necklaces

Therefore the ratio can be written like

`\Rightarrow (25)/(9)=(100)/(x)\\\\\Rightarrow x=(100)/(25)* 9\\\\\Rightarrow x=4* 9\\\Rightarrow x=36`

So, Helen has 36 necklaces